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23412 = 2231951

23412 has 12 divisors (see below), whose sum is σ = 54656. Its totient is φ = 7800.

The previous prime is 23399. The next prime is 23417. The reversal of 23412 is 21432.

Adding to 23412 its reverse (21432), we get a palindrome (44844).

It can be divided in two parts, 23 and 412, that added together give a triangular number (435 = T29).

It is a tau number, because it is divible by the number of its divisors (12).

It is a Harshad number since it is a multiple of its sum of digits (12), and also a Moran number because the ratio is a prime number: 1951 = 23412 / (2 + 3 + 4 + 1 + 2).

It is a nude number because it is divisible by every one of its digits.

It is an alternating number because its digits alternate between even and odd.

It is a nialpdrome in base 14.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23417) by changing a digit.

23412 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 964 + ... + 987.

223412 is an apocalyptic number.

It is an amenable number.

23412 is an abundant number, since it is smaller than the sum of its proper divisors (31244).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

It is a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (27328).

23412 is a wasteful number, since it uses less digits than its factorization.

23412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1958 (or 1956 counting only the distinct ones).

The product of its digits is 48, while the sum is 12.

The square root of 23412 is about 153.0098036075. The cubic root of 23412 is about 28.6074735551.

The spelling of 23412 in words is "twenty-three thousand, four hundred twelve", and thus it is an iban number.

Divisors: 1 2 3 4 6 12 1951 3902 5853 7804 11706 23412